Bichd



emma STATES PATENT carrer.

RICHD. M. Hon, or NEW YORK, N. Y.

INKING-ROLLER.

i V`1Speocation of LettersiPatent No. 3,550, dated April 17, 1844. i

To ailwhom t may concern Be it known that I, RICHARD M. Hon, of the cityof New York,` in the State of New Yorlgeivil engineer and machinist,have invented a new and useful Improv-ement in Apparatus Used for theInking of Forms by Means of Rollers Vin Printing-Presses of VariousKinds; and I do hereby declare that the following is' afull and exactdescription thereof. j

It is a point of primary importance to be i able to distribute the inkreadily and evenly be rendered' fluidby communicating heat to` on therollers used for the inking of type, and to transfer the same readily onto the form; and there is much dithculty in` doing this with the better`kinds of ink, on account `of its imperfectfiuidity at the ordinarytemperature of the atmosphere; this ditliculty may, however,` beovercome by a moderate elevation of the temperature of the ink. .Toeffect this, I construct the roller that is situated in the trough, orfountain, in such man ner as that any desired portion ofstearn, or

of heated air, may be made to pass through it, and thereby to warm theink upon its surface; such warming' being sutiicient to gire the ink thedesired degree of fluidity, without being such as shall unduly heat thecomposition on thatI whichisintended to distribute it upon the form. Theink may the trough containing it, which may be made i hollow for thatpurpose,` but I Vhave found that the heating of duces a be-tterelifect.y a

In the accompanying drawing,

the fountain roller proa, A, is

an inking roller, sustained by a suitable y frame in the fountain, ortrough, B, B. This roller I make hollow, or tubular, from end to end,and its terminal openings I make conical, so as to fit the conical endof two tubes, C, C, steam-tight, `while the roller is allowed to revolvefreely. i Against flanges, or shoulders, on the pieces, C, C, I allowsprings, D, D, to press, which keep said tubes up to their bearings.Steam, or

heated air, is to be admitted throughone of ing a real improvement inthe inking ap` paratus of the printing press, is-

The combining of a hollow roller, to be heatedby steam, or otherwise,with the fountain, or ink trough, of such inking apparatus; by meansofwhich improvement, a quality of'inkmay be used which could nototherwise be employed, anda better kind of work performed than when Suchroller is allowed toremain at the ordinary temperature of theatmosphere. 1l

" RICHD. M. HOE.

lVitness-es A. J, BownN, Trios. S. `HOLLINGSwonTH. V

